scholarly journals Phenological and Temperature Controls on the Temporal Non-Structural Carbohydrate Dynamics of Populus grandidentata and Quercus rubra

Forests ◽  
2010 ◽  
Vol 1 (1) ◽  
pp. 65-81 ◽  
Author(s):  
Christopher M. Gough ◽  
Charles E. Flower ◽  
Christoph S. Vogel ◽  
Peter S. Curtis
Keyword(s):  
Quercus Rubra ◽  
Structural Carbohydrate ◽  
Populus Grandidentata ◽  
Carbohydrate Dynamics

scholarly journals Rooting depth, water relations and non-structural carbohydrate dynamics in three woody angiosperms differentially affected by an extreme summer drought

2015 ◽  
Vol 39 (3) ◽  
pp. 618-627 ◽  
Author(s):  
Andrea Nardini ◽  
Valentino Casolo ◽  
Anna Dal Borgo ◽  
Tadeja Savi ◽  
Barbara Stenni ◽  
...  
Keyword(s):  
Water Relations ◽  
Rooting Depth ◽  
Summer Drought ◽  
Structural Carbohydrate ◽  
Carbohydrate Dynamics ◽  
Depth Water

scholarly journals Temperate tree seedlings have similar drought vulnerability despite having different hydraulic drought responses in adults

2021 ◽  
Author(s):  
Benjamin R Lee ◽  
Inés Ibáñez
Keyword(s):  
Climate Change ◽  
Tree Species ◽  
Quercus Rubra ◽  
Photosynthetic Capacity ◽  
Leaf Water ◽  
Drought Response ◽  
Tree Seedlings ◽  
Drought Vulnerability ◽  
Water Potentials ◽  
Structural Carbohydrate

Climate change is projected result in higher frequencies of drought events across the world and lead to reduced performance in many temperate tree species. However, many studies in this area focus specifically on adult tree drought responses and overlook how trees in other age classes might differ in their vulnerability. Evidence shows that seedling drought response can differ from that of adults and furthermore that demographic performance in the seedling age class will have disproportionately strong effects on the assembly dynamics of future forests, together suggesting that understanding seedling drought responses will be critical to our ability to predict how forests will respond to climate change. In this study, we measured four indices of hydraulic response to drought (leaf water potential, photosynthetic capacity, non-structural carbohydrate concentration, and hydraulic conductivity), as well as interaction effects with shade treatments, for seedlings of two temperate tree species that differ in their adult drought response: isohydric Acer saccharum and anisohydric Quercus rubra . We found a strong isohydric response in A. saccharum seedlings that included conservation of leaf water potentials (> -1.8 MPa) and reductions in non-structural carbohydrate concentrations consistent with reduction of stomatal conductance. Quercus rubra seedlings were able to survive to more negative water potentials, but only rarely, and they showed a similar reduction in photosynthetic capacity as was found for A. saccharum . Our results suggest that, although Q. rubra seedlings display some anisohydric responses to drought, they are more isohydric than adults. Both species seem to be relatively similar in their vulnerability to drought despite the differences predicted from adult drought response, and our results suggest that seedlings of both species will be similarly vulnerable to future drought events.

scholarly journals Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community

2018 ◽  
Vol 121 (7) ◽  
pp. 1383-1396 ◽  
Author(s):  
Francisco Lloret ◽  
Gerard Sapes ◽  
Teresa Rosas ◽  
Lucía Galiano ◽  
Sandra Saura-Mas ◽  
...  
Keyword(s):  
Woody Species ◽  
Structural Carbohydrate ◽  
Carbohydrate Dynamics

scholarly journals Biomass allocation and seasonal non-structural carbohydrate dynamics do not explain the success of tall forbs in short alpine grassland

Oecologia ◽  
2021 ◽  
Author(s):  
Erika Hiltbrunner ◽  
Jonas Arnaiz ◽  
Christian Körner
Keyword(s):  
Biomass Allocation ◽  
Belowground Biomass ◽  
Specific Pattern ◽  
Alpine Plants ◽  
Alpine Grassland ◽  
Pulse Labelling ◽  
Small Stature ◽  
Carbon Transfer ◽  
Structural Carbohydrate ◽  
Carbohydrate Dynamics

AbstractThe majority of alpine plants are of small stature. Through their small size alpine plants are decoupled from the free atmospheric circulation and accumulate solar heat. However, a few alpine species do not follow that “rule” and protrude with their aboveground structures from the microclimatic shelter of the main canopy boundary layer. We aim at explaining the phenomenon of being tall by exploring the biomass production and carbon relations of four pairs of small and tall phylogenetically related taxa in alpine grassland. We compared species and stature-specific biomass allocation, shifts in non-structural carbohydrate (NSC) concentrations in different tissues throughout the season, and we used 13C labels to track carbon transfer from leaves to belowground structures. Small and tall herbs did not differ in their above- to belowground biomass allocation. The NSC composition (starch, fructan, simple sugars) and allocation did not show a stature-specific pattern, except for higher concentrations of simple sugars in tall species during their extended shoot growth. In relative terms, tall species had higher NSC pools in rhizomes, whereas small species had higher NSC pools in roots. Our findings do not place tall alpine forbs in an exceptional category in terms of biomass allocation and carbohydrate storage. The tall versus small stature of the examined herbs does not seem to be associated with specific adjustments in carbon relations. 13C pulse labelling revealed early C autonomy in young, unfolding leaves of the tall species, which are thus independent of the carbon reserves in the massive belowground organs.

scholarly journals Non-Structural Carbohydrate Dynamics in Leaves and Branches of Pinus massoniana (Lamb.) Following 3-Year Rainfall Exclusion

Forests ◽  
2018 ◽  
Vol 9 (6) ◽  
pp. 315 ◽  
Author(s):  
Tian Lin ◽  
Huaizhou Zheng ◽  
Zhihong Huang ◽  
Jian Wang ◽  
Jinmao Zhu
Keyword(s):  
Pinus Massoniana ◽  
Structural Carbohydrate ◽  
Pinus Massoniana Lamb ◽  
Carbohydrate Dynamics

Non‐structural carbohydrate dynamics associated with antecedent stem water potential and air temperature in a dominant desert shrub

2020 ◽  
Vol 43 (6) ◽  
pp. 1467-1483 ◽  
Author(s):  
Jessica S. Guo ◽  
Linnea Gear ◽  
Kevin R. Hultine ◽  
George W. Koch ◽  
Kiona Ogle
Keyword(s):  
Water Potential ◽  
Air Temperature ◽  
Stem Water Potential ◽  
Desert Shrub ◽  
Structural Carbohydrate ◽  
Stem Water ◽  
Carbohydrate Dynamics
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